St. Louis County has 88 municipalities and 10 unincorporated census-designated places:
List by population and area MunicipalityPopulation Total Area (mi2) Population Density/sq mi Ballwin 31,283 8.95 3,494.6 Bella Villa 687 0.1 5,468.3 Bellefontaine Neighbors 11,271 4.4 2,573.2 Bellerive 254 0.4 713.0Bel-Nor 1,598 0.6 2,555.5Bel-Ridge 3,082 0.8 3,799.0Berkeley 10,063 4.9 2,040.6Beverly Hills 603 0.1 6,882.0Black Jack 6,792 2.7 2,553.3Breckenridge Hills 4,817 0.8 5,890.1Brentwood 7,693 1.9 3,948.4Bridgeton 15,550 15.2 1,067.1Calverton Park 1,322 0.4 3,154.5Champ 12 0.8 14.4Charlack 1,431 0.3 5,463.1Chesterfield 46,635 32.7 1,485.4 Clarkson Valley 2,675 2.7 995.1Clayton 16,061 2.5 5,164.4Cool Valley 1,081 0.5 2,244.1Country Club Hills 1,381 0.2 7,761.7Country Life Acres 81 0.1 725.5Crestwood 11,863 3.6 3,296.2Creve Coeur 16,500 10.1 1,628.9Crystal Lake Park 457 0.1 4,787.5Dellwood 5,255 1.0 5,108.2Des Peres 8,592 4.4 1,954.3Edmundson 840 0.3 3,018.0Ellisville 9,104 4.3 2,094.1Eureka 7,676 10.1 763.7Fenton 4,360 6.4 710.7Ferguson 22,406 6.19 3,620.6 Flordell Hills 931 0.1 8,111.7Florissant 51,812 11.7 4,442.4Frontenac 3,483 2.9 1,221.3Glendale 5,767 1.3 4,474.6Grantwood Village 883 0.8 1,054.1Greendale 722 0.2 3,480.3Green Park 2,666 1.4 1,909.0Hanley Hills 2,101 0.36 5,836.1Hazelwood 26,206 15.88 1,649.9Hillsdale 1,477 0.3 4,226.3Huntleigh 323 1.0 324.4Jennings 15,469 3.7 4,193.3Kinloch 449 0.7 616.5Kirkwood 27,324 9.23 2,961.3Ladue 8,645 8.6 414.0Lakeshire 4,387 2.28 2,160.0Manchester 19,161 5.0 3,834.6Maplewood 9,228 1.5 5,963.8Marlborough 2,235 0.2 9,829.4Maryland Heights 25,756 21.39 1,204.4 Castle Point 2,710 10.07 3,107.5Moline Acres 2,662 0.6 4,720.6Normandy 5,153 1.8 2,826.3Northwoods 4,643 0.7 6,545.7Norwood Court 1,061 0.1 7,783.2Oakland 1,540 0.6 2,545.7Olivette 7,438 2.8 2,667.5Overland 16,838 4.4 3,842.8Pagedale 3,616 1.2 3,003.8Pasadena Hills 1,147 0.2 5,044.0Pasadena Park 489 0.1 5,506.5Pine Lawn 4,204 0.6 6,942.5Richmond Heights 9,602 2.3 4,191.5Riverview 3,146 0.8 3,932.5Rock Hill 4,609 1.1 4,190.0Shrewsbury 6,644 1.4 4,655.4St. Ann 13,607 3.1 4,352.8St. John 6,871 1.4 4,825.8Sunset Hills 8,267 9.0 915.3Sycamore Hills 722 0.1 5,249.0Town and Country 10,894 11.9 916.8Twin Oaks 362 0.3 1,403.8University City 37,428 5.88 6,363.1 Uplands Park 460 0.1 6,904.3Valley Park 6,518 3.2 2,156.2Velda City 1,616 0.2 9,872.7Velda Village Hills 1,090 0.1 9,235.6Vinita Park 1,924 0.7 2,628.7Warson Woods 1,983 0.6 3,352.6Webster Groves 23,230 5.90 3,937.5Wellston 2,460 0.9 2,732.6Westwood 284 0.6 453.7Wilbur Park 475 0.1 7,882.2Wildwood 32,884 66.03 498.0Winchester 1,651 0.2 6,723.0Woodson Terrace 4,189 0.8 5,346.2
General information MunicipalityPoints of InterestStatusImageMapDescriptionAffton Census Designated Place Ballwin City Bella Villa City Bellefontaine Neighbors City Bellerive Village Bel-Nor Village Bel-Ridge Village Berkeley City Beverly Hills City Black Jack City Breckenridge Hills City Brentwood City Bridgeton City Calverton Park City Carsonville Unincorporated place Castle Point Census Designated Place / Not an incorporated municipality Champ Village Charlack City Chesterfield City Clarkson Valley City Clayton City Concord Census Designated Place Cool Valley City Country Club Hills City Country Life Acres Village Crestwood City Creve Coeur City Crystal Lake Park City Dellwood City Des Peres City Edmundson City Ellisville City Eureka Six Flags St. Louis City Fenton Town Ferguson City Flordell Hills City FlorissantCity Frontenac City Glasgow Village Census Designated Place / Not an incorporated municipality Glencoe Unincorporated community Glendale City Grantwood Village Village Greendale City Green Park City Grover Unincorporated community Hanley Hills Village Hazelwood City Hillsdale Village Huntleigh City Jennings City Kinloch City Kirkwood City Ladue City Lakeshire City Lemay Census Designated Place / Not an incorporated municipality Manchester City Maplewood City Marlborough Village Maryland Heights City Mehlville Census Designated Place / Not an incorporated municipality Moline Acres City Normandy City Northwoods City Norwood Court Village Oakland City Oakville Census Designated Place / Not an incorporated municipality Old JamestownCensus Designated Place / Not an incorporated municipalityOlivette City Overland City Pagedale City Pasadena Hills Village Pasadena Park Village Peerless Park Unincorporated community Pine Lawn City PondPopulated placeRichmond Heights City Riverview Village Rock Hill City Sappington Census Designated Place / Not an incorporated municipality Sherman Unincorporated community Shrewsbury City Spanish Lake Census Designated Place / Not an incorporated municipality St. Ann City St. George Census Designated Place (Disincorporated 2011) St. John City Sunset Hills City Sycamore Hills Village Times Beach Ghost town Town and Country City Twin Oaks Village University City City Uplands Park Village Valley Park City Velda City City Velda Village Hills Village Vinita Park City Warson Woods City Webster Groves City Wellston City Westwood Village Wilbur Park Village Wildwood City Winchester City Woodson Terrace City
References
External links St. Louis County maps.